diff --git a/core/java/android/text/TextLine.java b/core/java/android/text/TextLine.java
index 949328fd3a990..915a18e59226c 100644
--- a/core/java/android/text/TextLine.java
+++ b/core/java/android/text/TextLine.java
@@ -94,7 +94,8 @@ public class TextLine {
     private final DecorationInfo mDecorationInfo = new DecorationInfo();
     private final ArrayList<DecorationInfo> mDecorations = new ArrayList<>();
 
-    @UnsupportedAppUsage
+    /** Not allowed to access. If it's for memory leak workaround, it was already fixed M. */
+    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
     private static final TextLine[] sCached = new TextLine[3];
 
     /**